Automatic firearm with stationary barrel.



v o. WALTHER. AUTOMATIC PIREARM WITH STATIONARY BARREL.

APPLICATION FILED JUNBQ, 1910.

Patenfed May 2, 1911.

2 SHEETS-SHEET 1.

C. WALTHER. AUTOMATIC HRBARM WITH STATIONARYBARRBL.

APPLICATION FILED JUNBQ, 1910.

Patented May 2, 1911.

2 SHEETS-SHEET l..

ff@ ffl/0 fr L90. HHH! m W qm W. m @V CARL WALTHER, OF ZELLA, GERMANY.

.AUTGMATIC FIREARM IWITH STATIONARY BARREL.

Speeication of Letters Patent.

Patented May 2, 1911.

Application led June 9, 1910. Serial No. 565,918.

To all whom it may concern:

Be it known that I, CARL WALTHER, a subject of the German Emperor, andresident of Zella, Germany, have invented cer,- tain new and usefulImprovements in and Relating to Automatic Firearms with StationaryBarrels, of which the following is a specification.

This invention relates to automatic re arms. v

The object of the invention is vto provide a tire arm in which thebreech block is guided at its front end by a sleeve secured around thebarrel and at its rear by means on the stock whereby when it is desiredto .remove the breech block, the sleeve is removed, and the breech blockmay be conveniently removed.

The invention also comprehends improvements in the details ofconstruction and arrangement of 'parts which will be hereinafterdescribed and particularly pointed out in the claims.

In the drawings: Figure 1 is a side elevation of my improved lire arm,parts being in section. F 1g. 2 is a rear v1ew of the same. the breechblock being drawn to the rear and held by la retaining trigger. Fig. 4is an elevation, illustrating the breech block being removed from thestock. Fig. 5 is a detail sidelelevation of the front portion of thefire arm, the breech block being in the position shown in Fig. 1. Fig. 6is a detail cross section on the line A-B Fig. 5. Fig. .7 is a frontelevation of the re arm. Fig. 8 is a partial lon 'tudinal section of myimproved fire arm, il ustrating the firing position. Fig. 9, is aperspective view of the parts separated to illustrate the details bfconstruction. Fig. 10 is a detail perspective gliew of the front portionof the breech The numeral 1, indicates the stock of av rel 4, which isscrew-threaded at 5, ad-v jacent a shoulder 6. On vthe rear upper end ofthe stock 1, is an upwardly project- Fig. 3 is an elevation of thestock,"

ing lug 7, Jformed on its upper end with a head 8, and intermediate saidhead and the stock is a web 9.

Slidably mounted on the stock 1, is a breech block 10. The breech block10, is formed in its upper rear portion with an opening 11, and acommunicating slot 12. From the lower front portion of the breech block,project two forwardly extending side bars 13, connected at their frontends by a cross piece 14, and extending inwardly from these sideextensions are ribs 16.

The slot 12 which registers with the bore 11, is formed With lateralenlargements 18, to permit the head of the upwardly projecting lug 7 topass. The head 8 is in longitudinal alinement with the opening 11, andserves as a means of iding the rear portion of 'the breech block whenthe latter is in operative posi-tion on the stock 1. Mounted in theopening 11, between the front end of the breech block, and the head 8,is the usual firing pin 11a, and a spring 11b.

In the reduced extension 2 and the finger guard 3, is a slot 19, inwhich is pivoted a detent 20, having its operatlve end 21, normallyprojected through the slot 19, in the path of the cross bar 14, of thebreech block, by means of a spring 2 g Screwed on the barrel 4, is asleeve 24 which abuts against the shoulder 6,. and from this sleeveprojects a lug 25, which is normally seated in a groove 26 in one of theextensions 13, of the breech block. When the sleeve is in place theupper surface of the end piece 14, fits snugly under it, so that litwill be impossible to' tilt the breech block vto break the interlockingconnection with the stock. l l

When the parts are assembled as described, the breech block is drawntoward the rear to eject a cartridge and to introduce another in thepath of the firin and upon the release of the breech b oc a spring 14,on' a guide rod 30, seated inan opening 14c, in the stock 1, andoperating in an openin 14d, in the breech block forces the breech b ookforwardly and pushes the new cartridge into .the barrel, when by pullingthe usual trigger 40, the pistol may be fired. The headed lug 7 fittingin the opening 11, and the cross piece 14, the ribs 16, and the lug andgroove 25 and 26 form means for guiding the breech block in its slidingmovement on the stock. If it be desired to remove the breech block, thelatter is drawn rearwardly until the cross piece 14, is in rear of theoperating end 21, of the detent 20, whereupon the spring 22, forces theend 21, upwardly in the path of the cross piece and holds the breechblock in open position. The breech block may be pulled back farther thanthe end 21 of the detent at which time .the lug 25, on the sleeve 24 iswholly out of engagement with its groove 26. The sleeve may now beunscrewed from the barrel and removed therefrom, whereupon the detent 20is released and the breech block is forced forward by its operatingspring 14a until the enlarged portions 18, of the slot 12, register withthe head 8, as shown in' Fig. 3. Then the rear end of the, breech blockis tilted and the enlarged portions of the groove permit the head 8 tobe withdrawn from the opening and in thisl tilted condition, said breechblock is forced forward, as shown in Fig. 4, and removed from 'thestock. The cross bar V'14, is formed with an opening, through whichpasses aguide rod 30.

By this construction the operator may conveniently and quickly removethe breech block for repairs, or otherwise, without the necessity ofdisturbing theoperating parts of the pistol. By simply removing thesleeve on the barrel, and tilting the breech block,

the interlocking connection between the latter and the stock can bedisengaged. The purpose of the lug 26 is to insure the sleeve being inproper position on the 'barrel so that the sight indicated at 3()a willalways be properly located when the parts are assembled.

As the lire arm is designed primarily as a magazine pistol, andas thedetent 20 is intended to hold the breech block open to convenientlyremove the sleeve 24,said detent may also be used for the purpose ofholding the breech block open so that the pistol may be used forinserting a single cartridge in lieu of utilizing the magazine.

What VI claim is:

1. In a tire arm, the

combination of a stock, a barrel thereon, a breech block slidablymounted on the stock and `formed with an opening and a slot the walls ofwhich have enlargements, a headed lug extending upwardly from the stock,the head of said lug operating in the opening, and a sleeve 'on thebarrel to prevent the breech block bein tilted, the enlargements in the'slot permitting the headed lug to be disengaged from the opening whenthe sleeve 1s removed, whereby said block may be removed from the stock.

2. In a tire arm, the combination with a stock provided with aystationary barrel, a breech block provided with a cross bar and mountedon the stock, means for guiding the breech bloclron the stock, adetachable sleeve on the barrel with which the'breech block cooperatesto hold the latter in the guiding means to prevent the said breech blockbeing tilted, and means coperating with the guiding means to permit theeleva-l tion of the breech block above the barrel to permit the removalof said breech block when the detachable sleeve is removed.

3. In a fire arm, the combination with a stock provided with a barrel, asleeve mounted on the barrel, a slidable breech block mounted on thestock, guides on the front portion of the breech block to cooperate withthe sleeve to form a guide and means including a lug and an openingtherefor for guiding the rear end of the breech block, the said openinghaving a slot communicating therewith, whereby when the sleeve isremoved, the breech `block may be tilted to disengage the lug from theopenings to remove the breech block from the stock.

4. In a fire arm, the combination with a stock provided with a barrel, areciprocating breech block .provided with an opening and a slot, thelatter having enlarged portions, a headed lug extending from the stockand fit-ting in the opening said lug litt-ing in the slot and the headfitting in the opening, said breech block having a groove, a sleeve'lsecured to the barrel and provided with a lug which engages the groovein the breech block, and a spring detent on vthe stock adapted to bepositioned in the pathof movement of the breech block to hold the latterin open position.

5. In a fire arm, the combination of a stock having a barrel, a breechblock slidably mounted on the stock, a sleeve {itting on the barrel tohold the breech block in slidable relation on the stock and to preventsaid breech block being 'tilted at its rear end, and a lockingconnection between the breechv block and the stock.

6. In a fire arm, the combination of a stock, a barrel thereon, asliding breech block mounted on the stock, and formed with ribs, and agroove, said breech block' having an opening and a slot communicatingtherewith, the opening having enlarged portions, a headed lug extendingfrom the stock, the head of which tits in the opening,

drawn from the opening, whereby the breech and detachable means on thebarrel for pre- 10 block may be entirely removed from the Venting thebreaking of the interlocking stock. connection.

7. In a fire arm, the combination of a stock, a barrel thereon, aslidable breech block mounted on the stock, and interlocking connectionbetween the breech block and Vitnesses: the Stock including means forpermitting M.C.D1LL1NGHAM, the separation of the breech block and stock,S. HINZE,

In testimony whereof I have hereunto Set my hand in presence of twoWitnesses.

CARL XVALTHER.

